the Scientists of the National Institute of health in the United States with a laser beam fan and the video recorded a fall of drops of saliva within six seconds after 25 seconds the man loudly uttered the phrase “stay healthy”.
In the air indoors tiny particles hung even longer – for eight to fourteen minutes. The paper was published in the journal PNAS.
For every second breath loudly speaking person takes off about 2.5 thousand drops of saliva in size from one to 500 micrometers, and, according to the researchers, about 40 percent of these droplets contain viral particles.
the Average viral load of one milliliter of saliva of the patient COVID-19 is 7 million particles. Less than a drop and the more the content of nonvolatile substances (proteins and sugars, and viruses), the longer it will remain in the air.
